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Finding the Fourth Proportional to 6,549.33, 8,979.14 and 6,430.87

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Solution

The fourth proportional to 6,549.33, 8,979.14 and 6,430.87 is: 8,816.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,549.33 : 8,979.14 = 6,430.87 : x
  2. Step 2: Convert to fraction form
    6,549.33/8,979.14 = 6,430.87/x
  3. Step 3: Cross multiply
    6,549.33x = 8,979.14 × 6,430.87
  4. Step 4: Simplify right side
    6,549.33x = 57,743,682.05
  5. Step 5: Solve for x
    x = 57,743,682.05/6,549.33
  6. Step 6: Final answer
    x = 8,816.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.